Valve



Nov. 21,1923. 194753554 7 J. A. sAHuc I VALVE I Filed May 10, 1921 roazzwwma PatenteclNovt 2 7, 1923. I I C UNITEDI STATES 'uoeuns eueus'rn sauce,

01 CASTELANEvMONTR-ATIEB, FRANCE.

-may oo'nc'ermn I that-I, JACQUES A. SAHUC, acitizen of the Re ublic of France, residing at Castelaneontratier, Lot, France, have invented a new and useful Valve, of which the following is a specification.

This invention relates to an un-dismount- Be it known 7 able valve, in which'the clack may be easily cylinderieal part changed without dismounting the valve, when the same is defective or worn.

The figure of drawing'is awertical sectional view of a .valve constructed and arranged according tothe'. present invention.

The body of the valve has a bore. which has a reduced portion or n'e'ck' C, whose I at -eachend terminates in a funnel to faciliate the entrance and the the compressible caoutchouc-mass of the clack D. The clack method will serve but, of

into the latter.

D has astem E, which at its upper part is bent to form a ring F. This ring ofiers a two-fold advantage. It affords a better grip for introducing and for withdrawing the clack, and controls the latters travel without obstructing the air flowing out through the orifice of the valve.

The clack is formed of a ca-outchoucmass, very simple, having a conical upper part g, a cylindrical central part h, and a truncated lower part z. The compressible mass'may be freely introduced through the valve orifice and due'to its compressibility may be forced through the cylindrical part of the neck 0, by pressure. All that will be neces sary in order to attain this result will be to push the clack rod or stem by gripping the ring between ones thumb and first finger and imparting to the rings rotary'movement so as to facilitate the forcing of the mass through the cylindrical part of the neck. I 1

In order to remove the clack, the same course, the rod or stem is then to be pulled. out.

Both operations vare I very easily accomplished without injuring the clack. The latters travel is'controlledby ring F which comes to butt against the valve orifice The rings'diameter being larger than the diameter of the orifice, the ring cannot get When, the tyre being 'inflated; deflation is desired, one need but to press with ones' finger on the end of the clack.

No possibility of inflation to the utmost ejecting the clack is incurred since, on the Application M May 10, 1921.

bore provided with Serial No. 468,441.

contrary, when, by acting on elongation of the compressible mass is caused so as to allow the plug to pass through the narrow passage, the initial resistance to introduction into the said passage will suffice, the air pressure acting in the clack base K, to cause the latter to tend to become flattened, a flattening which will increase the diameter of the plug and thus increase its resistance to introduction into the passage indirect ratio to the degree of inflation. It will therefore be best to when it is desired to pull out the clack.

In order to obviate to every and even the most improbable mishaps, instance to the circumstance of a defective plug having too small a diameter, the length of the passage, the length of the clack rod or stem and the depth of the cap are cal culated in such a way, rodwould butt against the bottom of the valve cap t in the event of the clack mass happening to get into the passage 0. The plug is perfectly tight when the tyre is infiated, but it the rod ring rotate one quarter of a turn which would force the conical part of the plug on its seat. I

In order to ensure tightness of the cap, the leather or felt washers used with other deflate the tyre however, for I the rod an I that the end of the valves are replaced by an india rubber disk need this disk will press against the bottom of the groove and ensure tightness when the cap is positioned by screwing on.-

I To sum up while undismountable the valve shown in the drawing permits instantaneous interchangeability of the clack, the said valve is of very simple construction, convenient for inflation which is rendered e-asy owing to the suppression of all accessories that may obstruct the airoutlets, and easy to repair and to clean.

Claims:

. 1. A non-demountable valve for pneumatic. tires, comprising a body having a V a reduced neck, a valve of elastic compressible material, of greater normal diameter than said neck and adapted to be pushed therethrough and to then exnormally extending through said neck.

the valve and'normally extending through said neck and into said cap.

3 A non-demountable valve for pneumatic tires, comprising abody having a bore r velastic compressible material, of

end of the provided with a reduced neck, a valve'of I greater normal diameter than said neck and adapted to be pushed therethrough and to then expand, and a stem attached to the valve and normally extending through said neck, the

said neck terminating at each end in a conical extension to facilitate the entry and 20.

removal ofthe valvet In testimony whereof I aflix my signature.

JACQUES AUGUSTE SAHUC. 

